Simulation of the kinetics of complex heterogeneous catalytic reactions under diffusion limitations

Autor:	A. K. Avetisov, L. Christiansen, E. N. Shapatina, V. L. Kuchaev, A. G. Zyskin
Rok vydání:	2007
Předmět:	Chemistry Diffusion Kinetics Thermodynamics General Chemistry Catalysis Computer Science Applications Reaction rate Steam reforming Knudsen diffusion Modeling and Simulation Mass transfer Physical chemistry Stoichiometry
Zdroj:	Kinetics and Catalysis. 48:337-344
ISSN:	1608-3210 0023-1584
Popis:	A method is suggested for determining kinetic parameters of arbitrary complex heterogeneous catalytic reactions under conditions such that the reaction rate is significantly affected by heat and mass transfer to and in the catalyst pellets. Linear relationships are established between the concentrations of the key and dependent reactants (diffusion stoichiometry relationships) and between temperature and the concentrations of the key components. A solution procedure is suggested for the problems involved in the determination of kinetic parameters for reactions proceeding under diffusion limitations. The procedure is illustrated by analysis of data earlier reported for steam methane reforming over a nickel catalyst.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b488cb9ebd482a2cc1ba1219b51f043c https://doi.org/10.1134/s0023158407030019 Zobrazit plný text záznamu Plný text ve formátu PDF